acre-foot
Water volume measure
An acre-foot is a unit of volume used to measure large quantities of water, equal to the amount needed to cover one acre to a depth of one foot—about 326,000 gallons.
The term appears most often in discussions of irrigation, reservoir capacity, and water rights in the American West: The reservoir holds 850,000 acre-feet.
River water's measured movement
- watershedDrainage area boundary
- aquiferGroundwater-bearing geological formation
- runoffExcess water drainage
- precipitationAtmospheric water deposit
evapotranspiration · groundwater · recharge · discharge · inflow · outflow · seepage · percolation
Volume measurement in imperial
- gallonsVolume measurement units
- volumeAmount of space filled
- capacityMaximum amount containable
- water rightsLegal allocation of H2O
allocation · quantifying · surveying · engineering · conversion · metrics · imperial system · cubic yard
Water-holding barrier
- lakeEnclosed body of freshwater
- storageSpace for keeping goods
- water supplyProvisioned H2O delivery system
- basinConcave water receptacle
impoundment · catchment · spillway · capacity · pool · flood control · hydroelectric · release
Constructed water passages
- allocationDistribution of shares
- diversionRedirection of attention
- flood irrigationWater released across fields
- sprinklersDevices that scatter water
water delivery · pivot · ditches · aqueducts · water district · allotment · scheduling · efficiency
Agricultural terrain
- pastureGrazing ground for livestock
- orchardFruit tree plantation
- vineyardGrape-growing estate
- growing seasonTime crops can mature
yield · drought · cultivation · soil moisture · harvest · frost protection
streamflow
River water's measured movement
- watershedDrainage area boundary
- aquiferGroundwater-bearing geological formation
- runoffExcess water drainage
precipitation · evapotranspiration · groundwater · recharge · discharge · inflow · outflow · seepage · percolation · water table
cubic feet
Volume measurement in imperial
water rights · allocation · quantifying · surveying · engineering · conversion · metrics · imperial system · cubic yard · benchmark
dam
Water-holding barrier
- lakeEnclosed body of freshwater
- storageSpace for keeping goods
- water supplyProvisioned H2O delivery system
basin · impoundment · catchment · spillway · capacity · pool · flood control · hydroelectric · release · drawdown
canals
Constructed water passages
- allocationDistribution of shares
- diversionRedirection of attention
- flood irrigationWater released across fields
water delivery · sprinklers · pivot · ditches · aqueducts · water district · allotment · scheduling · efficiency · headgate
farmland
Agricultural terrain
growing season · yield · drought · cultivation · soil moisture · harvest · frost protection
acre-footdrop
Fall or release
fluid ounce · milliliter · teaspoon · cubic centimeter · gallon
acre-footacre
Land area measurement
square foot · square mile · hectare · square meter · square yard
foot, football, footing, footprint, acres, acre, footpath, footage, foothold